A patient in the ICU has been diagnosed with hypovolemic shock. His BP is 88/53, heart rate 122, and respiratory rate 26. Given these vital signs, the nurse should expect the urine output to be
A)
maintained between 30 and 50 mL/hour with no sediment in the bag.
B)
increased to 60+ mL/hour with dilute urine.
C)
decreased below 30 mL/hour with decreased GFR.
D)
the patient's normal amount with dark, concentrated urine.
Ans:
C
Feedback:
Under conditions of decreased perfusion or increased sympathetic nervous system stimulation, blood flow is redistributed away from the cortex toward the medulla. This redistribution of blood flow decreased glomerular filtration while maintaining the urine-concentrating ability of the kidneys, a factor that is important during conditions such as shock. The urine output would not increase, nor be normal.
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